Arrieta – who emerged as the front runner for the team’s open No. 5 starter position – pitched six scoreless innings in an eventual scoreless 10-inning tie with Pittsburgh.

Arrieta stranded five runners in scoring position and escaped two-on, one-out jams in both the fourth and fifth innings. Sanchez held the Orioles to two hits – both of them singles by third baseman Manny Machado – in five innings.

The Orioles had the best opportunity to score in the bottom of the ninth with runners on second and third with two outs, but catcher Chris Robinson hit a hard comebacker off Pirates pitcher Justin Wilson, but Wilson was able to recover and throw to first to beat Robinson and keep the game scoreless.

Orioles reliever Luis Ayala retired all six batters he faced in the seventh and eighth innings and left-hander Troy Patton tossed two scoreless innings for Baltimore.